M2.9 earthquake 23 km SE of Susitna North, Alaska
A magnitude 2.9 earthquake struck 23 km SE of Susitna North, Alaska on Thu, Sep 24, 1987, 8:45 AM AKDT (16:45 UTC), 42 km (26 mi) below the surface.
A larger quake followed: M4.9 4 km ESE of Wasilla, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.9 (ML, local (Richter)), micro
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1987-09-24 16:45:40 UTC
- Depth
- 41.5 km (25.8 mi), shallow
- Epicenter
- 62.004° N, 149.548° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 3 in the 30 days before it.
After
- 2.724 km NNE of Chickaloon, Alaska · 14253 days ago · 39 km deep · 68 km away
- 3.436 km N of Chickaloon, Alaska · 14226 days ago · 37 km deep · 51 km away
- 4.94 km ESE of Wasilla, Alaska · 14215 days ago · 42 km deep · 50 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00038pc. Read Sun, Oct 4, 2026, 11:57 PM UTC.